Heat dissipating fin and heat sink

ABSTRACT

A heat dissipating fin has a skirt having distal and proximal edges formed on at least one edge of the heat dissipating fin and multiple fastening components. Each fastening component is formed on the skirt and abuts the fringe of an adjacent the heat dissipating fin and has a hook and a hook mount. The hook is formed on and protrudes from the distal edge of the skirt. The hook mount is formed in the proximal edge of the skirt and corresponds to the hook. Since the hook is easily mounted through the hook mount the heat dissipating fins can be fabricated to form a heat sink easily to reduce manufacturing costs.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a heat dissipating fin, especially fora heat dissipating fin and heat sink formed therefrom to reducedmanufacturing costs.

2. Description of the Prior Arts

With reference to FIG. 9, multiple heat dissipating fins (90) inaccordance with the prior art are disposed in parallel and each heatdissipating fin (90) has two opposite edges and two pairs of fasteningmounts (91). The pairs of fastening mounts (91) are respectively formedon and protrude perpendicularly from the opposite edges of the heatdissipating fin (90) and each fastening mount (91) has a protrusion (92)and a cavity (93). The protrusion (92) is formed on the fastening mount(91). The cavity (93) defining the fastening mount (91) corresponds andopposite to the protrusion (92) of the fastening mount (91). When theheat dissipating fins (90) are formed into a heat sink, the protrusion(92) of the fastening mount (91) of one heat dissipating fin (90) ismounted on a corresponding cavity (93) of the fastening mount (91) of anadjacent heat dissipating fin (90).

However, due to the protrusions (92) and cavities (93) of the fasteningmount (91) are easily loosened so the heat dissipating fins (90) may beaccidentally separated during production, transportation anddistribution of the heat sink.

To overcome the shortcomings, the present invention provides a heatdissipating fin for a heat sink to mitigate or obviate theaforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a heatdissipating fin and heat sink formed therefrom, especially for a heatdissipating fin that can reduce manufacturing costs.

A heat dissipating fin in accordance with the present invention has askirt having distal and proximal edges formed on at least one edge ofthe fin and multiple fastening components. Each fastening component isformed on the skirt and abuts the fringe of an adjacent heat dissipatingfin and has a hook and a hook mount. The hook is formed on and protrudesfrom the distal edge of the skirt. The hook mount is formed in theproximal edge of the skirt and corresponds to the hook. Since the hookis easily mounted through the hook mount the heat dissipating fins canbe fabricated to form a heat sink easily to reduce manufacturing costs.

Other objectives, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a first embodiment of a heat sink inaccordance with the present invention comprising a first embodiment ofmultiple heat dissipating fins in accordance with the present invention;

FIG. 2 is a partially exploded perspective view of the heat sink in FIG.1;

FIG. 3 is an enlarged, partially exploded, perspective view of the heatsink in FIG. 1;

FIG. 4 is an enlarged cross sectional top view of the heat dissipatingfin in FIG. 1;

FIG. 5 is a partially exploded perspective view of a second embodimentof a heat sink in accordance with the present invention comprising asecond embodiment of multiple heat dissipating fins in accordance withthe present invention;

FIG. 6 is an enlarged, partially exploded, perspective view of the heatdissipating fin in FIG. 5;

FIG. 7 is an enlarged, cross sectional top view of the heat dissipatingfin in FIG. 5;

FIG. 8 is a perspective view of a third embodiment of a sink inaccordance with the present invention comprising a third embodiment ofmultiple heat dissipating fins in accordance with the present invention;and

FIG. 9 is a partially exploded perspective view of a heat sink inaccordance with the prior art comprising multiple heat dissipating finsin accordance with the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIGS. 1, 5 and 8, a heat sink in accordance with thepresent invention comprises multiple heat dissipating fins (10A, 10B,10C) in accordance with the present invention disposed parallelly andsecurely connected to adjacent heat dissipating fins (10A, 10B, 10C).Each heat dissipating fin (10A, 10B, 10C) has at least one edge, atleast one skirt (12A, 12C), at least one set of at least one fasteningcomponent (13A, 13B, 13C) and may have at least one through hole (11A,11B) and at least one sleeve (110).

The at least one skirt (12A, 12C) is formed on and protrudesrespectively from the at least one edge of dissipating fin (10A, 10B,10C), may extend along the entire edge of the fin (10A, 10B, 10C) andeach skirt (12A, 12C) has a distal edge, a proximal edge. Two oppositeedges may be implemented and two skirts (12, 12C) are implemented beingrespectively formed on the opposite edges.

With further reference to FIGS. 2 to 4, 6 and 7, the least one set ofthe at least one fastening component (13A, 13B, 13C) is formedrespectively on and corresponds respectively to the at least one skirt(12, 12C) of the heat dissipating fin (10A, 10B, 10C) and respectivelyabuts the at least one skirt (12, 12C) of an adjacent heat dissipatingfin (10A, 10B, 10C). Each fastening component (13A, 13B, 13C) has a hook(14A, 10B, 10C), a guide panel (16A, 16C) and a hook mount (15A, 15B,15C). The hook (14A, 14B, 14C) is formed on and protrudes from thedistal edge of a corresponding skirt (12, 12C), selectively hooks on oneedge of an adjacent heat dissipating fin (10A, 10B, 10C) and may beparallel with or oblique to the fin (10). The guide panel (16A, 16C) isformed on and protrudes from the distal edge of the corresponding skirt(12, 12C). The hook mount (16A, 15B, 15C) is formed in the proximal edgeof the corresponding skirt (12, 12C) and corresponds to and selectivelyreceives one hook (14A, 14B, 14C) of the adjacent heat dissipating fin(10A, 10B, 10C) and may further correspond to and receive a guide panel(16A, 16C) of the adjacent heat dissipating fin (10A, 10B, 10C). Theguide panels (16A, 16C) allow easy alignment of the fins (10A, 10B, 10C)to facilitate mounting the hook (14A, 14B, 14C) in the hook mount (15A,15B, 15C) and secure the fins (10A, 10B, 10C) to one another.

The at least one though hole (11A, 11B) is formed through the fin (10A,10B). The at least one sleeve (110) is formed respectively around the atleast one through hole (11A, 11B), protrudes from the fin (10A, 10B) andmay abut a corresponding sleeve of an adjacent fin (10A, 10B).

When the heat dissipating fin (10A, 10B) is implemented with two edges,two skirts (12) are respectively formed on the edges. At least onefastening component (13A, 13B) is formed on each skirt (12). At leastone through hole (11A, 11B) is formed through the fin (10A, 10B). Atleast one sleeve (110) is formed respectively around the at least onethrough hole (11A, 11B) and protrudes from the fin (10A, 10B).

In a first embodiment of the heat sink, the skirt (12) may extend alongthe entire edge and each fastening component (13A) may comprise a hook(14A) parallel with the fin (10A), an arched guide panel (16A) and acurved hook mount (15A), as shown in FIGS. 3 and 4.

Alternatively, in a second embodiment of the heat sink, each fasteningcomponent (13B) may comprise a hook (14B) oblique to the fin (10B) and aquadrangular hook mount (15B), as shown in FIGS. 6 and 7. Furthermore,the heat dissipating fin (10A, 10B) may be further have at least oneheat pipe (20) and each heat pipe (10) is mounted through one sleeve(110) to make the heat dissipating fin (10A, 10B) to form alignedarrangement.

In a third embodiment of the heat sink, the heat dissipating fin (10C)is implemented with a singular edge, two skirts (12C) may be formed onthe edge and extends the entire edge, two fastening components (13C) areformed respectively on the skirts (12C), as shown in FIG. 8. Eachfastening component (13C) comprises a hook (14C) parallel with the fin(10C), an arched guide panel (16C) and a curved hook mount (15C).Furthermore, the heat dissipating fin (10C) with one edge may be furthermounted in a frame (21C) to form a heat sink to ensure the fins (10) arealigned and facilitate mounting of the heat sink.

Multiple heat dissipating fins (10A, 10B, 10C) are aligned and assembledby inserting the hook (14A, 14B, 14C) of one fastening component (13A,13B, 13C) into the hook mount (15A, 15B, 15C) of an adjacent fasteningcomponent (13A, 13B, 13C). The heat sink of the present invention can beassembled quickly, easily and securely for increased production rate solowering costs. Furthermore, an arrangement of the fastening components(13A, 13B, 13C) adds a pleasing aesthetic.

Even though numerous characteristics and advantages of the presentinvention have been set forth in the foregoing description, togetherwith details of the structure and features of the invention, thedisclosure is illustrative only. Changes may be made in the details,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

1. A heat dissipating fin comprising at least one edge; at least oneskirt being formed on and protruding respectively from the at least oneedge and each skirt having a proximal and distal edge; and at least oneset of at least one fastening component being formed respectively andcorresponding respectively to the at least one skirt of the heatdissipating fin, and each fastening component having a hook being formedon and protruding from the distal edge of a corresponding skirt; and ahook mount being formed in the proximal edge of the corresponding skirtand corresponding to the hook of the fastening component.
 2. The heatdissipating fin as claimed in claim 1, wherein the heat dissipating finhas two opposite edges and two skirts are respectively formed on the twoedges.
 3. The heat dissipating fin as claimed in claim 2, wherein twofastening components are respectively formed on the skirts.
 4. The heatdissipating fin as claimed in claim 3, wherein each fastening componentfurther has a guide panel being formed on and protruding from the distaledge of the corresponding skirt.
 5. The heat dissipating fin as claimedin claim 4, wherein the hook is obliquely with the fin.
 6. The heatdissipating fin as claimed in claim 4, wherein the hook of eachfastening component is parallel with the fin.
 7. The heat dissipatingfin as claimed in claim 5, wherein the heat dissipating fin furthercomprises at least one through hole being formed through the fin; and atleast one sleeve being formed respectively around the at least onethrough hole and protruding from the heat dissipating fin.
 8. The heatdissipating fin as claimed in claim 6, wherein the heat dissipating finfurther comprises at least one through hole being formed through thefin; and at least one sleeve being formed respectively around the atleast one through hole and protruding from the heat dissipating fin. 9.A heat sink comprising multiple heat dissipating fins being disposedparallelly and securely connected to adjacent heat dissipating fins andeach heat dissipating fin having at least one edge; at least one skirtbeing formed on and protruding respectively from the at least one edgeand each skirt having a proximal and distal edge; and at least one setof least one fastening component being formed respectively on andcorresponding respectively to the at least one skirt of the heatdissipating fin and each fastening component having a hook being formedon and protruding from the distal edge of the corresponding skirt andselectively hooking on one edge of an adjacent heat dissipating fin; anda hook mount being formed in the proximal edge of the correspondingskirt, corresponding to the hook of the fastening component andselectively receiving the hook of an adjacent heat dissipating fin. 10.The heat sink as claim 9, wherein each heat dissipating fin has twoopposite edges and two skirts being formed respectively on the edges.11. The heat sink as claim 10, wherein two fastening component arerespectively formed on the skirts.
 12. The heat sink as claimed in claim11, wherein each fastening component further has a guide panel beingformed on and protruding from the distal edge of the correspondingskirt.
 13. The heat sink as claimed in claim 12, wherein the hook ofeach fastening component is obliquely with the fin.
 14. The heat sink asclaimed in claim 12, wherein the hook of each fastening component isparallel with the fin.
 15. The heat sink as claimed in claim 13, whereineach heat dissipating fin further comprises at least one through holebeing formed through the fin; and at least one sleeve being formedrespectively around the at least one through hole and protruding fromthe heat dissipating fin.
 16. The heat sink as claimed in claim 14,wherein each heat dissipating fin further comprises at least one throughhole being formed through the fin; and at least one sleeve being formedrespectively around the at least one through hole and protruding fromthe heat dissipating fin.
 17. The heat sink as claimed in claim 15,wherein each heat dissipating fin further has at least one heat pipe andeach heat pipe is mounted through one sleeve.
 18. The heat sink asclaimed in claim 16, wherein each heat dissipating fin further has atleast one heat pipe and each heat pipe is mounted through one sleeve.19. The heat sink as claimed in claim 13, wherein the heat dissipatingfins are mounted in a frame.
 20. The heat sink as claimed in claim 14,wherein the heat dissipating fins are mounted in a frame.